Reenforcing paper



In Fig. 1 I have alsoillustrated diagrammatically an improvedmethod of combining strand material 13 witha multi-ply paper. This strand material13, which may take the form of a' loosely woven fabric such as burlap of about 1%" or 1A" terial.

meshfmay be fed from a supply roll 37 through the pool 31 of impregnating material in such manner that=.the sheet of strands is impregnated and also picks up and carries with it a substantial layer of the molten material before contact#4 ingwith the Webs. The reenforcing material 13 is preferably supplied slackly, as indicated diagrammatically in the figure by the showing of a drive 39 for roll 37.

When a reenforcement of strands is incorpof rated in a paper structure in the manner de, scribed, it is not merely pasted between the two webs or to their faces but, as illustrated in Fig. 4, is embedded in the layer 12 of waterproofing ma- An important function of such a material under these circumstances is to position such a layer between vthe two webs 5 and '7 to resist displacement or ow thereof in such manner as might leave thin or bare spots-between the two webs.

The improved product shown is applicable to various uses. Among them may be mentioned, in the case where the webs 5 and 7 are paper material of strong body, use as a building paper to kbe embodied in a building structure, as described in my application Serial: No. 499,064, filed Nov. 29, 1930. In this case the webs 5 and 'i are preferably craped as shown so that the material may expand under the strains which the building under'goes after erection. The substantial layer of material 12 interposed between the webs serves to seal about the nails or similar fastenings by which the paper is securedin position in the structure.

I am aware that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be A' considered in all respects as illustrative and not restrictive; reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

I claim:

- 1. A method of preparing reenforced waterproof paper which comprises leading opposed Webs of paper downwardly in converging path to a horizontal line of opposition along which they meshed reticulated reenforcement defining sub-1 stantial spaces between the elements thereof through said pool whereby its elements are sat-.-

urated and it picks up a layer of said material and then pastv said line between the webs with the layer of material carried thereby.

3. A method of preparing reenforced waterproof paper which comprises leading opposed webs of paper downwardly in converging path to a horizontal line of opposition along which they are pressed together, maintaining a pool of adhesive waterproofing material in the trough formed between the webs and leading first through the pool a sheet of spaced strands adapted to pick up and to hold between the individual strands a layer of the material and then past said line between the webs.

. EDWARD H. ANGIER.l

.CERTFICATE 0F CORRECTION.

Patent No. 1,974,594.

September 25, 1934.

EDWARD H. ANGIER.

lt is hereby certified that error appears in the printed specification of the abovel'numbered patentA requiring correction as follows:

Page 1, line 33, for "and absorbed" read an adsorbed; and that the said Letters Patent should be `read with this correction therein that the same may conform to the record of the. case in the Patent Office. v

(Seal) Leslie Frazer Acting Commissioner of Patents.

In Fig. 1 I have alsoillustrated diagrammatically an improvedmethod of combining strand material 13 witha multi-ply paper. This strand material13, which may take the form of a' loosely woven fabric such as burlap of about 1%" or 1A" terial.

meshfmay be fed from a supply roll 37 through the pool 31 of impregnating material in such manner that=.the sheet of strands is impregnated and also picks up and carries with it a substantial layer of the molten material before contact#4 ingwith the Webs. The reenforcing material 13 is preferably supplied slackly, as indicated diagrammatically in the figure by the showing of a drive 39 for roll 37.

When a reenforcement of strands is incorpof rated in a paper structure in the manner de, scribed, it is not merely pasted between the two webs or to their faces but, as illustrated in Fig. 4, is embedded in the layer 12 of waterproofing ma- An important function of such a material under these circumstances is to position such a layer between vthe two webs 5 and '7 to resist displacement or ow thereof in such manner as might leave thin or bare spots-between the two webs.

The improved product shown is applicable to various uses. Among them may be mentioned, in the case where the webs 5 and 7 are paper material of strong body, use as a building paper to kbe embodied in a building structure, as described in my application Serial: No. 499,064, filed Nov. 29, 1930. In this case the webs 5 and 'i are preferably craped as shown so that the material may expand under the strains which the building under'goes after erection. The substantial layer of material 12 interposed between the webs serves to seal about the nails or similar fastenings by which the paper is securedin position in the structure.

I am aware that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be A' considered in all respects as illustrative and not restrictive; reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

I claim:

- 1. A method of preparing reenforced waterproof paper which comprises leading opposed Webs of paper downwardly in converging path to a horizontal line of opposition along which they meshed reticulated reenforcement defining sub-1 stantial spaces between the elements thereof through said pool whereby its elements are sat-.-

urated and it picks up a layer of said material and then pastv said line between the webs with the layer of material carried thereby.

3. A method of preparing reenforced waterproof paper which comprises leading opposed webs of paper downwardly in converging path to a horizontal line of opposition along which they are pressed together, maintaining a pool of adhesive waterproofing material in the trough formed between the webs and leading first through the pool a sheet of spaced strands adapted to pick up and to hold between the individual strands a layer of the material and then past said line between the webs.

. EDWARD H. ANGIER.l

.CERTFICATE 0F CORRECTION.

Patent No. 1,974,594.

September 25, 1934.

EDWARD H. ANGIER.

lt is hereby certified that error appears in the printed specification of the abovel'numbered patentA requiring correction as follows:

Page 1, line 33, for "and absorbed" read an adsorbed; and that the said Letters Patent should be `read with this correction therein that the same may conform to the record of the. case in the Patent Office. v

(Seal) Leslie Frazer Acting Commissioner of Patents. 

